{ inputs, outputs, lib, config, pkgs, ... }:
let
  my-python-packages = python-packages:
    with python-packages; [
      # pipx
      distutils
      docx2txt
      numpy
      pip
      python-dateutil
      requests
      setuptools
    ];
  python-with-my-packages = pkgs.python3Full.withPackages my-python-packages;
in {
  nix = {
    settings = {
      experimental-features = [ "nix-command" "flakes" ];
      warn-dirty = false;
      auto-optimise-store = true;
      trusted-users = [ "root" "don" ];
    };
    gc = {
      automatic = true;
      dates = "daily";
      options = "--delete-older-than 7d";
    };
  };
  imports = [
    inputs.catppuccin.nixosModules.catppuccin
    ../../home
    ../../home/gui
    ./../themes.nix
    ../wm/greetd
    ./detect-reboot-needed.nix
    ./systemd.nix
    # ./tailscale.nix
    ./upgrade-diff.nix
    ./kmscon.nix
    ./wine.nix
    ./tlp.nix
  ];

  networking = {
    networkmanager.enable = true;
    enableIPv6 = true;
    networkmanager = { wifi = { powersave = true; }; };
    useDHCP = false;
    firewall = {
      enable = true;
      trustedInterfaces =
        [ "tailscale0" ]; # always allow traffic from your Tailscale network
      checkReversePath = "loose";
      allowedUDPPorts = [ config.services.tailscale.port ];
      allowedTCPPortRanges = [{
        from = 1714;
        to = 1764;
      }];
      allowedUDPPortRanges = [{
        from = 1714;
        to = 1764;
      }];
      allowedTCPPorts = [ 22 ];
      interfaces = {
        "tailscale0" = {
          allowedTCPPorts = [ 22 8080 8443 8384 ];
          allowedTCPPortRanges = [{
            from = 1714;
            to = 1764;
          }];
          allowedUDPPortRanges = [{
            from = 1714;
            to = 1764;
          }];
        };
      };
    };
  };

  # Set your time zone.
  time = {
    timeZone = "America/Chicago";
    hardwareClockInLocalTime = false;
  };

  # Select internationalisation properties.
  i18n = {
    defaultLocale = "en_US.UTF-8";
    inputMethod = {
      enable = true;
      type = "fcitx5";
      fcitx5.addons = with pkgs; [ fcitx5-mozc fcitx5-gtk ];
    };
  };

  # Bootloader.
  boot = {
    # kernelPackages = pkgs.linuxPackages_latest;
    kernelPackages = pkgs.linuxPackages_zen;
    kernelParams = [ "consoleblank=60" "mem_sleep_default=deep" ];
    # extraModulePackages = [config.boot.kernelPackages.ddcci-driver];
    # kernelModules = ["i2c-dev" "ddcci_backlight"];
    loader = if (pkgs.hostPlatform != lib.mkDefault "aarch64-linux") then {
      systemd-boot = { enable = true; };
      efi = {
        canTouchEfiVariables = true;
        efiSysMountPoint = "/boot";
      };
    } else {
      grub.enable = false;
      generic-extlinux-compatible.enable = true;
    };
    plymouth = { enable = true; };
    kernel = { sysctl = { "vm.swappiness" = 10; }; };
  };

  security = {
    polkit = { enable = true; };
    sudo.enable = false;
    doas = {
      enable = true;
      extraRules = [{
        users = [ "don" ];
        keepEnv = true;
        noPass = true;
      }];
    };
  };

  services = {
    avahi = {
      enable = true;
      nssmdns4 = true;
      publish = {
        enable = true;
        addresses = true;
        userServices = true;
      };
    };
    bpftune = { enable = true; };
    flatpak = { enable = true; };
    fstrim = { enable = true; };
    fwupd = { enable = true; };
    locate = {
      enable = true;
      package = pkgs.mlocate;
    };
    logind = {
      lidSwitchExternalPower = "ignore";
      lidSwitchDocked = "ignore";
    };
    nscd = { enableNsncd = true; };
    openssh = {
      enable = true;
      settings = {
        PasswordAuthentication = false;
        KbdInteractiveAuthentication = false;
      };
    };
    pcscd = { enable = true; };
    pipewire = {
      enable = true;
      alsa = {
        enable = true;
        support32Bit = true;
      };
      pulse = { enable = true; };
    };
    printing = {
      enable = true;
      drivers = [ pkgs.hplipWithPlugin ];
    };
    pulseaudio = { enable = false; };
    tailscale = { enable = true; };
    udev = {
      extraRules = ''
        ACTION=="add|change", KERNEL=="sd[a-z]*[0-9]*|mmcblk[0-9]*p[0-9]*|nvme[0-9]*n[0-9]*p[0-9]*", ENV{ID_FS_TYPE}=="ext4", ATTR{../queue/scheduler}="none" '';
    };
    udisks2 = { enable = true; };
  };

  hardware = {
    bluetooth = { enable = true; };
    sane = {
      enable = true;
      extraBackends = [ pkgs.sane-airscan ];
      disabledDefaultBackends = [ "escl" "v4l" ];
    };
  };
  security.rtkit.enable = true;

  xdg.portal = {
    enable = true;
    wlr.enable = true;
    extraPortals = [
      pkgs.xdg-desktop-portal-gtk
      pkgs.xdg-desktop-portal-wlr
      pkgs.kdePackages.xdg-desktop-portal-kde
    ];
  };

  users = {
    users = {
      root = {
        initialPassword = "changeme";
        openssh.authorizedKeys.keys = [
          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINd8AdVbQQ/Fmw+b9mI8EMYqIoRkwmSwAOtmlte3incL don@loki"
        ];
      };
      don = {
        isNormalUser = true;
        initialPassword = "changeme";
        description = "Don Harper";
        extraGroups =
          [ "networkmanager" "wheel" "scanner" "lp" "video" "mlocate" "disk" ];
        openssh.authorizedKeys.keys = [
          "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINd8AdVbQQ/Fmw+b9mI8EMYqIoRkwmSwAOtmlte3incL don@loki"
        ];
      };
    };
  };

  zramSwap = {
    enable = true;
    memoryPercent = 25;
    memoryMax = 2147483648;
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;
  nixpkgs.config.allowUnfreePredicate = true;
  nixpkgs.config.permittedInsecurePackages = [ "libxml2-2.13.8" ];

  fonts.packages = with pkgs; [
    anonymousPro
    font-awesome
    jetbrains-mono
    nerd-fonts.symbols-only
    nerd-fonts.roboto-mono
    nerd-fonts.monaspace
    nerd-fonts.ubuntu
    nerd-fonts.fira-code
    source-code-pro
    noto-fonts
    powerline-fonts
    source-code-pro
    victor-mono
  ];

  environment.systemPackages = with pkgs; [
    python-with-my-packages
    acpi
    aspell
    aspellDicts.en
    base16-schemes
    bash-completion
    brightnessctl
    btop
    caligula
    colmena
    delta
    espeak-classic
    fwup
    fwupd
    fwupd-efi
    git-crypt
    gitFull
    headsetcontrol
    home-manager
    hunspell
    hunspellDicts.en_US
    id3v2
    imagemagick
    isync
    just
    libsForQt5.qtkeychain
    lsb-release
    lsof
    nix-bash-completions
    nixd
    nixfmt-classic
    isync
    pkg-config
    playerctl
    poppler_utils
    pulseaudio
    ruby
    sops
    termsonic
    toot
    udiskie
    wireplumber
    wlsunset
    xdg-utils
    xfce.thunar
    xsane
    zathura
  ];

  programs = {
    dconf = { enable = true; };
    light = { enable = true; };
    mtr = { enable = true; };
    kdeconnect = { enable = true; };
    gnupg = {
      agent = {
        enable = true;
        pinentryPackage = pkgs.pinentry-curses;
        enableSSHSupport = true;
      };
    };
  };

  nixpkgs.overlays = [
    (final: prev: {
      qutebrowser = prev.qutebrowser.override { enableWideVine = true; };
    })
    (final: super: {
      khal = super.khal.overridePythonAttrs (_: { doCheck = false; });
    })
  ];

  nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It's perfectly fine and recommended to leavecatenate(variables, "bootdev", bootdev)
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.11"; # Did you read the comment?
  programs.msmtp = {
    enable = true;
    accounts = {
      default = {
        auth = true;
        tls = true;
        port = 587;
        from = "don@donharper.org";
        host = "smtp.smtp2go.com";
        user = "donharper.org";
        passwordeval = "cat /home/don/.smtp_password.txt";
      };
    };
  };
  xdg.mime.enable = true;
  xdg.mime.defaultApplications = {
    "text/html" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/http" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/https" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/about" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/unknown" = "org.qutebrowser.qutebrowser.desktop";
  };
  environment.sessionVariables.DEFAULT_BROWSER =
    "${pkgs.qutebrowser}/bin/qutebrowser";
}